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Long-Term Slough Crayfish (Procambarus fallax) Densities in the Florida Everglades from Throw Trap Sampling, Florida, USA, February 1996-December 2016


At a Glance


(Zip file containing 4 files)

Authors: Dylan Sinnickson, Nathan Dorn, Joel Trexler
Time period: 1996-02-07 to 2016-12-21
Package id: knb-lter-fce.1267.1

How to cite:
Sinnickson, D., N. Dorn, J. Trexler. 2024. Long-Term Slough Crayfish (Procambarus fallax) Densities in the Florida Everglades from Throw Trap Sampling, Florida, USA, February 1996-December 2016. Environmental Data Initiative. https://doi.org/10.6073/pasta/e3ba91f949357ebefb86134e5dac3ba8. Dataset accessed 2024-12-03.

Geographic Coverage
This data set contains the following files.

FCE1267_LD_0
Daily depth measurements at Everglades sampling locations and the cumulative length of antecedent dry conditions.
Attribute table details     Download

FCE1267_CRAY_DATASET
Dataset describing crayfish abundance and hydrologic characteristics at sampling locations.
Attribute table details     Download

FCE1267_01_LD_Depths
Calculates the length of antecedent dry conditions. Builds output necessary for crayfish modeling script.
Attribute table details     Download

FCE1267_02_Modeling_Code
Modeling code for crayfish analysis.
Attribute table details     Download



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Detailed Metadata


  • Dataset Abstract
    Densities of slough crayfish (Procambarus fallax) were collected throughout the Florida Everglades using 1-m2 throw-trapping samples from 1996–2016. Data were collected in four distinct regions within the Everglades (Shark River Slough, Taylor Slough, Water Conservation Area 3A and 3B) and during five seasonal periods each year. Each region consists of a series of sites, and each site consists of 3–5 sampling plots. The plot scale defines the unique sampling unit in the study, and 5–7 replicate throws were conducted at each plot. Corresponding hydrologic data were collected in conjunction with crayfish observations. These data describe antecedent average water depths, along with the duration of previous wet and dry conditions. Antecedent conditions were calculated by using both in situ measurements, as well as model output from the Everglades Depth Estimation Network (EDEN). Additional hydrologic data are provided in the LD_0 dataset, which describes daily depths measurements at sampling plots, as well as the length of antecedent complete drying events (LD_0). The length of antecedent dry conditions is assessed in R script FCE1267_01_LD_Depths, while the crayfish modeling code is described in FCE1267_02_Modeling_Code.
  • Geographic Coverage
    Bounding Coordinates
    Geographic extent of sampling locations in the Everglades including Water Conservation Area 3, Shark River Slough, and Taylor Slough.
    N: 26.26, S: 25.26, E: -80.4, W: -81.0

  • Attributes
    • Data Table:   Daily depth measurements at Everglades sampling locations and the cumulative length of antecedent dry conditions.
      Attribute Name:
      REGION
      Attribute Label:
      REGION
      Attribute Definition:
      Region in Everglades
      Storage Type:
      string
      Measurement Scale:
      PHD= Panhandle
      SRS= Shark River Slough
      TSL= Taylor Slough
      WCA= Water Conservation Area 3
      Missing Value Code:
       

      Attribute Name:
      SITE
      Attribute Label:
      SITE
      Attribute Definition:
      Site within a larger region. Each region contains several sites. Each site consists of 3 to 5 plots.
      Storage Type:
      string
      Measurement Scale:
      text
      Missing Value Code:
       

      Attribute Name:
      PLOT
      Attribute Label:
      PLOT
      Attribute Definition:
      Unique sampling unit. Each site consists of 3 to 5 sampling plots.
      Storage Type:
      string
      Measurement Scale:
      A= First sampled plot of a site
      B= Second sampled plot of a site
      C= Third sampled plot of a site
      D= Fourth sampled plot of a site
      E= Fifth sampled plot of a site
      Missing Value Code:
       

      Attribute Name:
      YEAR
      Attribute Label:
      YEAR
      Attribute Definition:
      Year in Study
      Storage Type:
      dateTime
      Measurement Scale:
      Missing Value Code:
       

      Attribute Name:
      MONTH
      Attribute Label:
      MONTH
      Attribute Definition:
      Month of year
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Number Type: integer
      Missing Value Code:
       

      Attribute Name:
      DAY
      Attribute Label:
      DAY
      Attribute Definition:
      Day of month
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Number Type: integer
      Missing Value Code:
       

      Attribute Name:
      SEASON
      Attribute Label:
      SEASON
      Attribute Definition:
      Wet or dry season
      Storage Type:
      string
      Measurement Scale:
      DRY= Dry season
      WET= Wet season
      Missing Value Code:
       

      Attribute Name:
      DEPTH
      Attribute Label:
      DEPTH
      Attribute Definition:
      Depth
      Storage Type:
      float
      Measurement Scale:
      Units: centimeter
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      LD_0
      Attribute Label:
      LD_0
      Attribute Definition:
      Length dry at 0 cm
      Storage Type:
      float
      Measurement Scale:
      Units: Days
      Number Type: integer
      Missing Value Code:
       


    • Data Table:   Dataset describing crayfish abundance and hydrologic characteristics at sampling locations.
      Attribute Name:
      REGION
      Attribute Label:
      REGION
      Attribute Definition:
      Region in Everglades
      Storage Type:
      string
      Measurement Scale:
      SRS= Shark River Slough
      TSL= Taylor Slough
      WCA= Water Conservation Area 3
      Missing Value Code:
       

      Attribute Name:
      YEAR
      Attribute Label:
      YEAR
      Attribute Definition:
      Year in Study
      Storage Type:
      dateTime
      Measurement Scale:
      Missing Value Code:
       

      Attribute Name:
      PERIOD
      Attribute Label:
      PERIOD
      Attribute Definition:
      Period in Study. Similar to season.
      Storage Type:
      string
      Measurement Scale:
      1= Approximately February
      2= Approximately April
      3= Approximately July
      4= Approximately October
      5= Approximately December
      Missing Value Code:
       

      Attribute Name:
      MONTH
      Attribute Label:
      MONTH
      Attribute Definition:
      Month
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Number Type: integer
      Missing Value Code:
       

      Attribute Name:
      SITE
      Attribute Label:
      SITE
      Attribute Definition:
      Location within a region. Multiple sites within each region. Each site has 3 to 5 sampling plots.
      Storage Type:
      string
      Measurement Scale:
      text
      Missing Value Code:
       

      Attribute Name:
      PLOT
      Attribute Label:
      PLOT
      Attribute Definition:
      Unique sampling unit. Each site consists of 3 to 5 sampling plots. Each plot has 5 to 7 replicate throws
      Storage Type:
      string
      Measurement Scale:
      A= First sampled plot of a site
      B= Second sampled plot of a site
      C= Third sampled plot of a site
      D= Fourth sampled plot of a site
      E= Fifth sampled plot of a site
      Missing Value Code:
       

      Attribute Name:
      THROW
      Attribute Label:
      THROW
      Attribute Definition:
      Replicates conducted at each plot. Five to seven throws are conducted at each plot.
      Storage Type:
      float
      Measurement Scale:
      Units: throw
      Number Type: integer
      Missing Value Code:
       

      Attribute Name:
      PROFAL
      Attribute Label:
      PROFAL
      Attribute Definition:
      Abundance of slough crayfish (Procambarus fallax). Number of individuals in a throw.
      Storage Type:
      float
      Measurement Scale:
      Units: numberPerMeterSquared
      Number Type: integer
      Missing Value Code:
      -9999 (Locations where crayfish sampling could not be conducted due to complete drying or overly deep conditions.)

      Attribute Name:
      DAY
      Attribute Label:
      DAY
      Attribute Definition:
      Day
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Number Type: integer
      Missing Value Code:
       

      Attribute Name:
      DEPTH_AVE_30DAY
      Attribute Label:
      DEPTH_AVE_30DAY
      Attribute Definition:
      Average antecedent depth at the plot over the last 30 days
      Storage Type:
      float
      Measurement Scale:
      Units: centimeter
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      DEPTH_AVE_365DAY
      Attribute Label:
      DEPTH_AVE_365DAY
      Attribute Definition:
      Average antecedent depth at the plot over the last 365 days
      Storage Type:
      float
      Measurement Scale:
      Units: centimeter
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      DEPTH
      Attribute Label:
      DEPTH
      Attribute Definition:
      Current depth at plot
      Storage Type:
      float
      Measurement Scale:
      Units: centimeter
      Number Type: real
      Missing Value Code:
       

      Attribute Name:
      DSLDD_0
      Attribute Label:
      DSLDD_0
      Attribute Definition:
      Days since last dry down to 0 cm. Continuous wet conditions above 0 cm.
      Storage Type:
      float
      Measurement Scale:
      Units: Days
      Number Type: integer
      Missing Value Code:
       

      Attribute Name:
      DSLDD_10
      Attribute Label:
      DSLDD_10
      Attribute Definition:
      Days since last dry down to 10 cm. Continuous wet conditions above 10 cm.
      Storage Type:
      float
      Measurement Scale:
      Units: Days
      Number Type: integer
      Missing Value Code:
       

      Attribute Name:
      WATERYEAR
      Attribute Label:
      WATERYEAR
      Attribute Definition:
      Hydrologic year from May 1st to April 30th.
      Storage Type:
      float
      Measurement Scale:
      Units: dimensionless
      Number Type: integer
      Missing Value Code:
       


  • Methods
    Method Step

    Description
    Details of the throw-trapping methodology and the efficiency for crayfish are described in Jordan et al. 1997 and Dorn et al. 2005, respectively. The dimensions of the throw traps are 1 square meter with a mesh size of 2 mm. Seven throws were randomly conducted at each sample plot within Shark River Slough and Taylor Slough, while five throws were conducted at each plot from the Water Conservation Areas. This gear type is ideal for sampling small-bodied fish and invertebrates in shallow, wetland habitats. Mean crayfish densities were assessed at the plot scale by taking the average of all throws at each plot.

    Monitoring and modeling for the Everglades Depth Estimation Network (EDEN) are described in Telis 2006. The EDEN models estimate daily water depths using a grid-scale of 400x400m.

    References:
    Dorn, N. J., R. Urgelles, and J. C. Trexler. 2005. Evaluating active and passive sampling methods to quantify crayfish density in a freshwater marsh. Journal of the North American Benthological Society 24: 346-356.
    Jordan, F., Coyne, S. and Trexler, J.C., 1997. Sampling fishes in vegetated habitats: effects of habitat structure on sampling characteristics of the 1‐m2 throw trap. Transactions of the American Fisheries Society, 126: 1012-1020.
    Telis, P.A., 2006. The Everglades Depth Estimation Network (EDEN) for support of ecological and biological assessments (No. 2006-3087). US Geological Survey.

    Instrumentation
    Throw-trapping

  • Distribution and Intellectual Rights
    Online distribution
    https://pasta.lternet.edu/package/data/eml/knb-lter-fce/1267/1/e5cc581b1ba2c1e0a7ffdc0ad84bfaf9
    Intellectual Rights
    This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

  • Keywords
    FCE LTER, Everglades National Park, Florida Coastal Everglades LTER, crayfishes, hydrology, populations, populations
  • Dataset Contact

    • Name: Dr. Nathan Dorn 
    • Position: Associate Professor
    • Organization: Florida International University
    • Email: ndorn@fiu.edu

    • Position: Information Manager
    • Organization: Florida Coastal Everglades LTER
    • Address: Florida International University
      11200 SW 8th Street, OE 148
      Miami, FL 33199 USA
    • Email: fcelter@fiu.edu
    • URL: https://fcelter.fiu.edu

  • Data Table and Format
    Data Table:  Daily depth measurements at Everglades sampling locations and the cumulative length of antecedent dry conditions.

    Entity Name:
    FCE1267_LD_0
    Entity Description:
    Daily depth measurements at Everglades sampling locations and the cumulative length of antecedent dry conditions.
    Object Name:
    FCE1267_LD_0.CSV
    Number of Header Lines:
    1
    Attribute Orientation:
    column
    Field Delimiter:
    ,
    Number of Records:
    942590

    Data Table:  Dataset describing crayfish abundance and hydrologic characteristics at sampling locations.

    Entity Name:
    FCE1267_CRAY_DATASET
    Entity Description:
    Dataset describing crayfish abundance and hydrologic characteristics at sampling locations.
    Object Name:
    FCE1267_CRAY_DATASET.csv
    Number of Header Lines:
    1
    Attribute Orientation:
    column
    Field Delimiter:
    ,
    Number of Records:
    38415